Fig. 1
From: Craniofacial growth and function in achondroplasia: a multimodal 3D study on 15 patients
Clinical grading of morphological severity: maxillo-zygomatic retrusion: mild (patient A), moderate (patient B) and severe (patient C), normal nasal root (patient A), deep nasal root with moderate nasal bone hypoplasia (patient B), totally flattened nasal root with severe nasal bone hypoplasia (patient C), forehead: flattened (patient A), moderate convexity (patient B), markly prominent forehead (patient C)